Open Database License: Difference between revisions

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Latest revision as of 19:50, 11 June 2025

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{{short description|Share-alike license for databases}}

{{Infobox software license

| name = Open Database License

| image = Open Database License (ODbL) summary icons OKFN.png

| image_size = 160px

| caption = You are free: To '''Share''', To '''Create''', To '''Adapt''' as long as you: '''Attribute''', '''Share-Alike''', '''Keep open'''<ref>{{Cite web|url=https://opendatacommons.org/licenses/odbl/summary/|title=ODC Open Database License (ODbL) Summary|date=September 12, 2009}}</ref>

| author = [[OpenStreetMapOpen Data Commons]]

| version = v 1.0

| publisher = [[Open Knowledge Foundation]]

| date =

| Debian approved =

| Free Software =

| GPL compatible =

| copyleft = Yes

}}

The '''Open Database License''' ('''ODbL''') is a [[copyleft]] ("[[share alike]]") [[license]] agreement intended to allow users to freely share, modify, and use a [[database]] while maintaining this same freedom for others.<ref name="ODbL1">{{cite web|url=http://www.opendatacommons.org/licenses/odbl/1.0/|title=Open Database License (ODbL) v1.0|publisher=[[Open Data Commons]]|access-date=2 July 2011}}</ref>

ODbL is published by [[Open Data Commons]], (seewhich also [[Open Data]]),is part of [[Open Knowledge InternationalFoundation]] (was Foundation).<ref name="ODC-About">{{cite web|url=http://www.opendatacommons.org/about/|title=Open Data Commons - About|publisher=[[Open Data Commons]]|access-date=2 July 2011}}</ref>

The ODbL was created with the goal of allowing users to share their data freely without worrying about problems relating to copyright or ownership. It allows users to freely use the data in the database, including in other databases; edit existing data in the database; and add new data to the database. The license establishes the rights of users of the database, as well as the correct procedure for attributing credit where credit is due for the data, and how to make changes or improvements in the data, thus simplifying the sharing and comparison of data.

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==Conditions==

* Attribute: You must attribute any public use of the database, or works produced from the database, in the manner specified in the ODbL. For any use or redistribution of the database, or works produced from it, you must make clear to others the license of the database and keep intact any notices on the original database.

* Share-Alike: If you publicly use any adapted version of this database, or works produced from an adapted database, you must also offer that adapted database under the ODbL.

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==Notable uses==

The [[OpenStreetMap]] (OSM) project completed the move from a [[Creative Commons]] license to ODbL in September 2012<ref>{{cite web|title=OpenStreetMap data license is ODbL|date=12 September 2012 |url=http://blog.osmfoundation.org/2012/09/12/openstreetmap-data-license-is-odbl/|publisher=OpenStreetMap Foundation|access-date=17 September 2012}}</ref> in an attempt to have more legal security<ref>{{cite web|title=Legal FAQ|url=https://wiki.openstreetmap.org/wiki/Legal_FAQ/CC-BY-SA_Archive#What.27s_this_about_a_licence_change.3F|publisher=OpenStreetMap}}</ref> and a more specific license for databases rather than creative works.<ref>{{Cite thesis |last=Mayr |first=Markus |title=A Web-Based System for Comparative Analysis of OpenStreetMap Data by the Use of CouchDB |url=https://repositum.tuwien.at/handle/20.500.12708/8850}}</ref>

Other projects using ODbL include [[OpenCorporates]],<ref>{{Cite web|url=https://opencorporates.com/infolegal/licence|title = Licence :: Info :: OpenCorporates}}</ref> [[Open Data Blend]],<ref>{{Cite web|title=Open Database Licence (ODbL) {{!}} Open Data Blend|url=https://www.opendatablend.io/open-database-licence|access-date=2021-07-20|website=www.opendatablend.io}}</ref> [[Open Food Facts]],<ref>{{Cite web|url=https://world.openfoodfacts.org/data|title=Data|website=world.openfoodfacts.org}}</ref> and [[Paris OpenData]].,<ref>{{Cite web|url=https://opendata.paris.fr/page/lalicence/|title=Open Data Paris|website=opendata.paris.fr}}</ref> and [[Overture Maps Foundation|Overture Maps]].<ref>{{cite web |title=Download – Overture Maps Foundation |url=https://overturemaps.org/download/ |access-date=26 July 2023}}</ref>

The [[OpenStreetMap]] (OSM) project completed the move from a [[Creative Commons]] license to ODbL in September 2012<ref>{{cite web|title=OpenStreetMap data license is ODbL|url=http://blog.osmfoundation.org/2012/09/12/openstreetmap-data-license-is-odbl/|publisher=OpenStreetMap Foundation|access-date=17 September 2012}}</ref> in an attempt to have more legal security<ref>{{cite web|title=Legal FAQ|url=https://wiki.openstreetmap.org/wiki/Legal_FAQ/CC-BY-SA_Archive#What.27s_this_about_a_licence_change.3F|publisher=OpenStreetMap}}</ref> and a more specific license for databases rather than creative works.

Other projects using ODbL include [[OpenCorporates]],<ref>https://opencorporates.com/info/licence</ref> [[Open Food Facts]],<ref>{{Cite web|url=https://world.openfoodfacts.org/data|title=Data|website=world.openfoodfacts.org}}</ref> and [[Paris OpenData]].<ref>{{Cite web|url=https://opendata.paris.fr/page/lalicence/|title=Open Data Paris|website=opendata.paris.fr}}</ref>

== See also ==

* [[Sui generis database right]]

* {{slink|Linux Foundation|Community Data License Agreement (CDLA)}}

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==External links==

* [https://opendatacommons.org/licenses/odbl/ Open Database License (ODbL)] Open Data Commons.

{{Open data navbox}}

[[Category:Licensing]]

[[Category:Databases]]

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[[Category:OpenStreetMap]]

[[Category:Copyleft]]

{{Comp-stub}}